28 Jan 2026 · 1 min
Derek Cole explains why dirt is the main reason air conditioners and heaters fail. Regular filter changes and pre-season maintenance checks keep HVAC units running efficiently.
Really, it all goes back to dirt. Dirt is the killer of most air conditioners and heaters. So if you get the unit maintained, maintenance, cleaned, checked, normally you do not have these kind of problems. If you do not, then it's a whole big process because the motor moves the air. The more you don't change the filter, the more dirt gets on the motor, the harder it has to work, the more energy it uses. And then that goes out and that stops your unit from working. It all goes back to dirt. Dirt is the number one cause of the problem. So you need to make sure your unit is maintenanced, maintained, clean. Check heating, cooling, season. Make sure it's checked before you get into that period so you know you're good to go.
713. Fan "On" or "Auto"? The Thermostat Setting That Could Be Making Your Home More Humid
712. Why Is My Upstairs Always Hotter Than Downstairs? The Truth Every Homeowner Should Know